/*
	This file is part of cpp-ethereum.
	cpp-ethereum is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.
	cpp-ethereum is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.
	You should have received a copy of the GNU General Public License
	along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
// adapted from https://github.com/ethereum/cpp-ethereum/blob/develop/libdevcore/TrieDB.h

#include <boost/algorithm/string.hpp>

#include "FixedHash.h"

namespace dev
{

    std::random_device s_fixedHashEngine;

    h128 fromUUID(std::string const& _uuid)
    {
        try
        {
            return h128(boost::replace_all_copy(_uuid, "-", ""));
        }
        catch (...)
        {
            return h128();
        }
    }

    std::string toUUID(h128 const& _uuid)
    {
        std::string ret = toHex(_uuid.ref());
        for (unsigned i: {20, 16, 12, 8})
            ret.insert(ret.begin() + i, '-');
        return ret;
    }

}
